Home / 15,941.80-21,995.94-10,909.48

Finding the Fourth Proportional to 15,941.80, 21,995.94 and 10,909.48

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Solution

The fourth proportional to 15,941.80, 21,995.94 and 10,909.48 is: 15,052.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,941.80 : 21,995.94 = 10,909.48 : x
  2. Step 2: Convert to fraction form
    15,941.80/21,995.94 = 10,909.48/x
  3. Step 3: Cross multiply
    15,941.80x = 21,995.94 × 10,909.48
  4. Step 4: Simplify right side
    15,941.80x = 239,964,267.51
  5. Step 5: Solve for x
    x = 239,964,267.51/15,941.80
  6. Step 6: Final answer
    x = 15,052.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.